The Colloidal Suprastructure of Smart Microgels at Oil-Water Interfaces

被引:94
作者
Brugger, Bastian [1 ]
Ruetten, Stephan [2 ,3 ]
Phan, Kim-Ho [2 ,3 ]
Moeller, Martin [2 ,3 ]
Richtering, Walter [1 ]
机构
[1] Rhein Westfal TH Aachen, Inst Phys Chem, D-52056 Aachen, Germany
[2] Rhein Westfal TH Aachen, DWI eV, D-52074 Aachen, Germany
[3] Rhein Westfal TH Aachen, Inst Tech & Makromol Chem, D-52074 Aachen, Germany
关键词
copolymerization; de-emulsification; emulsions; gels; interfaces; SOLID PARTICLES; ELECTRON MICROSCOPY; EMULSIONS; MICROSTRUCTURE; SUSPENSIONS; LINE; PH;
D O I
10.1002/anie.200900239
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Oil on troubled waters: Stimuli-sensitive emulsions have been used to prepare temperature- and pH-responsive microgels. The emulsion stability at oil-water interfaces is not governed by the particle packing density, and structural changes induced by the interface lead to connections between the individual microgels (see picture; scale bar 1 μm), which behave very differently compared to solidparticle-stabilized emulsions. © 2009 Wiley-VCH Verlag GmbH & Co. KGaA.
引用
收藏
页码:3978 / 3981
页数:4
相关论文
共 31 条
[21]   Environmental responsiveness of microgel particles and particle-stabilized emulsions [J].
Ngai, To ;
Auweter, Helmut ;
Behrens, Sven Holger .
MACROMOLECULES, 2006, 39 (23) :8171-8177
[22]   Temperature-sensitive aqueous microgels [J].
Pelton, R .
ADVANCES IN COLLOID AND INTERFACE SCIENCE, 2000, 85 (01) :1-33
[23]   PREPARATION OF AQUEOUS LATTICES WITH N-ISOPROPYLACRYLAMIDE [J].
PELTON, RH ;
CHIBANTE, P .
COLLOIDS AND SURFACES, 1986, 20 (03) :247-256
[24]   Emulsions [J].
Pickering, SU .
JOURNAL OF THE CHEMICAL SOCIETY, 1907, 91 :2001-2021
[26]   Understanding the self-assembly of charged nanoparticles at the water/oil interface [J].
Reincke, Francois ;
Kegel, Willem K. ;
Zhang, Hao ;
Nolte, Marc ;
Wang, Dayang ;
Vanmaekelbergh, Daniel ;
Mohwald, Helmuth .
PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2006, 8 (33) :3828-3835
[27]   Temperature sensitive microgel suspensions: Colloidal phase behavior and rheology of soft spheres [J].
Senff, H ;
Richtering, W .
JOURNAL OF CHEMICAL PHYSICS, 1999, 111 (04) :1705-1711
[28]   Small-angle neutron scattering study of structural changes in temperature sensitive microgel colloids [J].
Stieger, M ;
Richtering, W ;
Pedersen, JS ;
Lindner, P .
JOURNAL OF CHEMICAL PHYSICS, 2004, 120 (13) :6197-6206
[29]   Review on the dynamics and micro-structure of pH-responsive nano-colloidal systems [J].
Tan, Beng H. ;
Tam, Kam C. .
ADVANCES IN COLLOID AND INTERFACE SCIENCE, 2008, 136 (1-2) :25-44
[30]   Temperature-responsive polymers in mixed solvents: Competitive hydrogen bonds cause cononsolvency [J].
Tanaka, Fumihiko ;
Koga, Tsuyoshi ;
Winnik, Francoise M. .
PHYSICAL REVIEW LETTERS, 2008, 101 (02)